* Happy Computer - Schneider Sonderheft Nr.1 (1985) - 464
* Happy Computer - Schneider Sonderheft Nr.3 (1986) - 664/6128
== Technical ==
Disconnect the Printer D7 pin from ground, and wire it to the PIOs Tape WR DATA pin instead (That is, Pin 12 of the 8255 chip).
== Scanned Articles ==